Belief in God is rational. Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED.
6.4.22
What is the problem with השקפה world view. It is too easy to talk about it for hours without knowing anything. And this is the major problem in the religious world. They can talk endlessly about "Hashkafa" without the slightest idea of Gemara, Rashi and Tosphot. It is false religion that pretends to be authentic Torah.Thank God there were people like Rav Kinyevsky or Rav Shach to set people straight about what Torah is really about. But the general religious world follows "Torah Scholars that are demons," [in that memorable phrase from Rav Nahman.] [If Rav Nahman had come into the world just for that phrase, it would be enough.]]תלמידי חכמים שדיים יהודאיים{LeM I:12 and I:28},-- or that other one רברבי עשו [LeM I:8]
